<template>
<div>
  <!-- 面包屑导航区域 -->
  <el-breadcrumb separator-class="el-icon-arrow-right">
  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
  <el-breadcrumb-item>用户管理</el-breadcrumb-item>
  <el-breadcrumb-item>用户列表</el-breadcrumb-item>
  </el-breadcrumb>
  <!-- 卡片式图区域 -->
  <el-card>
    <!-- 搜索与添加区域 -->
  <el-row :gutter="20">
    <el-col :span="8">
      <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
      </el-input>
    </el-col>
    <el-col :span="4">
      <el-button type="primary" @click="addDialogVisible = true">
        添加用户
      </el-button>
    </el-col>
  </el-row>
  <!-- 用户列表区域 -->
  <el-table :data="userList" border stripe>
    <el-table-column type="index"></el-table-column>
    <el-table-column label="姓名" prop="username"></el-table-column>
    <el-table-column label="邮箱" prop="email"></el-table-column>
    <el-table-column label="电话" prop="mobile"></el-table-column>
    <el-table-column label="角色" prop="role_name"></el-table-column>
    <el-table-column label="状态">
      <template slot-scope="scope">
        <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)">
        </el-switch>
      </template>
    </el-table-column>
    <el-table-column label="操作" width="180px">
      <template slot-scope="scope">
        <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUsersById(scope.row.id)"></el-button>
        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
        <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
        </el-tooltip>
      </template>
    </el-table-column>
  </el-table>
  <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 2, 5, 6]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
</el-card>
<!-- 添加用户的对话框 -->
<el-dialog
  title="添加用户"
  :visible.sync="addDialogVisible"
  width="50%"
  @close="addDialogClose">
  <!-- 内容主体区域 -->
  <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
  <el-form-item label="用户名" prop="username">
    <el-input v-model="addForm.username"></el-input>
  </el-form-item>
   <el-form-item label="密码" prop="password">
    <el-input v-model="addForm.password"></el-input>
  </el-form-item>
   <el-form-item label="邮箱" prop="email">
    <el-input v-model="addForm.email"></el-input>
  </el-form-item>
   <el-form-item label="手机" prop="mobile">
    <el-input v-model="addForm.mobile"></el-input>
  </el-form-item>
  </el-form>
  <!-- 底部区域 -->
  <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser">确 定</el-button>
  </span>
</el-dialog>
<!-- 修改用户的对话框 -->
<el-dialog
  title="修改用户"
  :visible.sync="editDialogVisible"
  width="50%">
  <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
    <el-form-item label="用户名">
      <el-input v-model="editForm.username" disabled></el-input>
    </el-form-item>
    <el-form-item label="邮箱" prop="email">
      <el-input v-model="editForm.email"></el-input>
    </el-form-item>
    <el-form-item label="手机" prop="mobile">
      <el-input v-model="editForm.mobile"></el-input>
    </el-form-item>
  </el-form>
  <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
</el-dialog>
<!-- 分配角色的对话框 -->
<el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogvisible"
  width="50%"
  @close="setRoleDialogClosed">
  <div>
    <p>当前的用户: {{userInfo.username}}</p>
    <p>当前的角色: {{userInfo.role_name}}</p>
    <p>分配新角色:
      <el-select v-model="seletedRoleId" placeholder="请选择">
    <el-option
      v-for="item in rolesList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
    </p>
  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogvisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>
</div>
</template>

<script>
export default {
  data () {
    // 验证邮箱的规则
    var checkemail = (rule, value, cb) => {
      const regemail = /^[A-Za-z0-9]+([_.][A-Za-z0-9]+)*@([A-Za-z0-9-]+\.)+[A-Za-z]{2,6}$/
      if (regemail.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的邮箱!'))
    }
    // 验证手机号的规则
    var checkmobil = (rule, value, cb) => {
      const regmobile = /^(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\d{8}$/
      if (regmobile.test(value)) {
        return cb()
      }
      cb(new Error('请输入正确的手机格式'))
    }
    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: '',
        // 当前的页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 2
      },
      userList: [],
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '用户名长度在3-10个字符之间', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '密码长度在6-15个字符之间', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkemail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkmobil, trigger: 'blur' }
        ]
      },
      // 查询到的用户信息
      editForm: [],
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkemail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkmobil, trigger: 'blur' }
        ]
      },
      // 控制分配角色对话框的显示与隐藏
      setRoleDialogvisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 所有角色的数据列表
      rolesList: [],
      // 已选中的角色id值
      seletedRoleId: ''
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取用户列表失败')
      this.userList = res.data.users
      this.total = res.data.total
      console.log(this.userList)
    },
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码值改变的事件
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听switch开关状态的改变
    async userStateChange (userinfo) {
      // 调用API接口保存最新状态
      const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    addDialogClose () {
      // 监听通知栏关闭事件 关闭了就清空表单
      this.$refs.addFormRef.resetFields()
    },
    // 点击按钮添加新用户
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        // 可以发起网络请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功!')
        // 隐藏添加的对话框
        this.addDialogVisible = false
        // 重新获取用户列表数据
        this.getUserList()
      })
    },
    // 展示编辑用户的对话框
    async showEditDialog (id) {
      this.editDialogVisible = true
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      this.editForm = res.data
    },
    // 修改用户信息并提交
    editUserInfo () {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.put('users/' + this.editForm.id,
          { email: this.editForm.email, mobile: this.editForm.mobile })
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户失败')
        }
        this.editDialogVisible = false
        this.getUserList()
        this.$message.success('更新用户成功')
      })
    },
    // 根据id删除对应信息
    removeUsersById (id) {
      this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        this.$message({
          type: 'success',
          message: '删除成功!'
        })
        this.$http.delete('users/' + id)
        this.getUserList()
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消删除'
        })
      })
    },
    async setRole (userInfo) {
      this.userInfo = userInfo
      // 在展示对话框之前获取所有角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }
      this.rolesList = res.data
      console.log(this.rolesList)
      this.setRoleDialogvisible = true
    },
    // 点击按钮分配角色
    async saveRoleInfo () {
      if (!this.seletedRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.seletedRoleId })
      if (res.meta.status !== 200) {
        this.$message.error('更新角色失败')
      }
      this.$message.success('更新角色成功')
      this.getUserList()
      this.setRoleDialogvisible = false
    },
    setRoleDialogClosed () {
      this.seletedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang="less" scoped>
  .text {
    font-size: 14px;
  }
  .item {
    padding: 18px 0;
  }
  .box-card {
    width: 480px;
  }
</style>
